Valve



INVENTOR Patented Mar. 16,1920.

& 1

I able means to UNITED ST AT OFFER.

nzennv J. near, or DETROIT, mcmem, nssmuon or ONE-HALF rognnnswonmn s.

BB YA-NT, OE DETROIT, MICHIGAN. 3

To kill whom it concern:

Beit'known' that I, HENRY q citizen'ef the United States, and residing at Detroit, in the county of Wayneand State of Michi an, have invented a, new and 11m proved alve, of which the followin is a, specification. a I

This invention relates to valves of the puppet type adapted to be lifted from-their seats by-the springs, and its object is to provide-iidjustr limit the movement oi'the valves under normal conditions andthereby reduce to a minimum the'sou-nd caused by 'thevalves strikingtheir seats. A further flobjec't of this invention Vis to PIOVldG the means for limiting the normal liftof puppet 1 justa'ble abutment or ment of the valve.

valves with a yieldable positioningdevice which will permit additionalmovements un- 7 tier extraordinary conditions.

This invention consist 1n a'. poppet valve and a, casing therefor, resilient means'to normally hold thevalve on its seat but pen mit it to lift from its seet under rede'termined fluid ,pre'ssuresiogethen wit anadstop to limit the move- It also consists in a mounting for the abutment or stop which may be operated from the outside of the machine within which the -va lve and its are mounted. It furtherconsists in .so constructing thisabutment or stop that :it willbe controlled by 't to valve, and the 'ing bein said meln yield under, extraordinary fiuid' pressures and thereby permit the 3 valve to through increased distances. i T his invention further consists in providing a, cylindrical valve casing with a, circumf'erential flange and with acking rings on each-side of said flange, teflenge anc the rings serving to form fluid tight joints between the two par-ts of the machine which contain the passe es ,oithe fluid which is to valve casfitted into cylindrical necsses in rs so as to positionthem.

In the accompanying "drawing Figure 1 is a central section of the valve casing and the valve-therein and a. section ofthe two members which are joined by the valve casingg the two members being substantially the cylinder and the cylinder-head ofthe com- J. Bring a pressures of fluids and returned 'to their 'seats by gravity and the force .of,

amnjionia-gas compressors these ringis preferably be of lead. The casing is with discharge passages 27 and with a seat move 28 for the valve 29.

'nects to the passages VALVE.

p l .s eemaenon ofIzetterslet'eiit. v t t M 1 ,1 0; Application filed September 9:, 1918. Serial 110. 258,182. i l

pressor, shown in my prior application No.

221,814,fi1'ed March 11, 1918. Fig. 2 isan elevation of, the rotatable velveadjusting member,- part being broken away to show.

thepin connecting it to the abutment.

The cylinder 1 is shown provided with a lining 2 within which is slidable a piston 3 having rings 61 and a head 5 securedrin positlon by means of screws 6. provided with a seat- 7 for the valve 8 whose stem ,9 is guided by a sleeve 10 extending down from the' head 5. Passages 12 are 8 onto its seat.

A valvecasinp; 20 has a circumferential flange 21 which preferably rests on the lining 2- of the cylinder and-is of thesame diameter, the lower end of the casing prefen ably fitting Within the 'lining.- .This flange also fits a recess in the cylinder head 23 The head 5 is which; has a discharge passage 24, the end .of which is preferably counterbored to r'e- ('eive the valve casing. The head may, be secured to the cylinder by means of bolts 25, and rings 2 6 01 any desired packing may be placed above and below the flange- 21 to prevent leakage. When this valve is usedriil1 ormed This valve is,also of the puppet type and is slidable within the casing 20. It central chamber 31 in which the spring 32 and with passages 33 and'34 communicating therewith, the passages M'also' ]0lIllng the circumferential passage 35 which con cvlinder head is formed with. a. recess coaxial with the valve chamber and the ends has a.

l is mounted topress the valve onto its seat 27 in thecasing: The

thereof are threaded to receive the abutment 37 and the locking sleeve 38. Within the locking sleeve 18 mounted the rotatable member 39 which is formed with a transverse slot 40 to receive a tool by means of. which it may be turned.' The abutment 37 extends a butm nt 37 stroke of the piston; ths lift: of being-- limited; by

in this member 39 and 48 mpunted in this member extends gs xiii ithe Blot 1'11; is vplaesd between shouldsrs an 39 and the :cylinder head to pfiei qntlakags f, s stejn 4,7.extends; up into 'arecess in time gmdhas a hesdj48 e narmm Ebdhditions andf s sag of compr s i o V the Valve. the stem 47;. The-item man minin but th ,s vth fimbmi r and; whim: at si ch m i t s .sisc srge slmm d hav but-little f usu l y 1s 'forcd upwara'by the piston.hastime;mask-- 2 0:

sge mgm; This Is especiall fli zih l in comp essors, *fqr amm wgaswh zwfi e gas passes throuf h At tlmes hbigeveq eompaljatlvely lgrfie f, liquid 'ammqnia pa s th ong &0 a. minimumj iwhe i a,.reee:ssv 53 igmceiveuthel 44 in the abutment. A

to,a recess; in the valve; Astifl spring nst th belifted discharge i" bs-mm 'i is necessary. 1 N

milkin age-531%,

extendi ,down from'th abutment to li mit tho-movmslitgf theyalve. s

he" oqmbmation of a lurality of reefised mpmbers, one: above the other, a valve casing inpunbdin recesses in said members. "'pstflvaglve vertically slidable in said flaking, 't

,5 in ertical alihement "which .i egpssf is threaded at abutment screw-threaded in of the rsc ess, \a lobking filnj 'fiheiflppsr and. of "thereces's, a rotatable mqmbsr' expsndinfil e bgyq; position 1 with the "valve, both ends, an the 'l wer end abgtment, 'a stemlvershdqble in s'gid abutment zmd ex- ,tenki1figd6wh"t limit the movement of the 'ml vfindia spring onsaid stem to.norn1ally 'it fmm, being lifted by' the'valve.

hqmi ibsmfor, a, valve casing mounted be-.,

I han s, puppet yalye slidable verti- 35 1 1 {1 d. 1 W-W n c ew tf fried in said hjea to limit the mqvement 0 ween ,t

sleeve screw-threaded 'ya l lve, s mtaltabl member mounted in e u'pp er, member having another tll rol i'gh said looking 

